Popup Window - Multiple Instances
By default Ignition only opens a single copy of each window in the client. However, you can open multiple copies (or instances) of the window in the Client.
Opening multiple copies
By default, opening a window will only ever open one copy of any given window. If the window is already open, it simply brings it to the front. Normally this is the desired behavior. For example, if you opened the compressor popup window for compressor #6, and then opened it for compressor #4, the window that had been controlling #6 will switch to controlling #4.
Sometimes you may want to open a separate popup, one for #6, and one for #4, both at the same time. If this is the case, use the system.nav.openWindowInstance function call to open your window.